/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.nifi.controller.service;

/**
 * Represents the valid states for a Controller Service.
 */
public enum ControllerServiceState {

    /**
     * Controller Service is disabled and cannot be used.
     */
    DISABLED,
    /**
     * Controller Service has been disabled but has not yet finished its
     * lifecycle methods.
     */
    DISABLING,
    /**
     * Controller Service has been enabled but has not yet finished its
     * lifecycle methods.
     */
    ENABLING,
    /**
     * Controller Service has been enabled and has finished its lifecycle
     * methods. The Controller Service is ready to be used.
     */
    ENABLED;
}
